148 lines
3.3 KiB
C++
148 lines
3.3 KiB
C++
#include "Extruder.hpp"
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namespace Slic3r {
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Extruder::Extruder(int id, GCodeConfig *config)
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: id(id),
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config(config)
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{
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reset();
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// cache values that are going to be called often
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this->e_per_mm3 = this->extrusion_multiplier()
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* (4 / ((this->filament_diameter() * this->filament_diameter()) * PI));
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this->retract_speed_mm_min = this->retract_speed() * 60;
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}
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void
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Extruder::reset()
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{
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this->E = 0;
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this->absolute_E = 0;
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this->retracted = 0;
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this->restart_extra = 0;
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}
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double
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Extruder::extrude(double dE)
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{
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// in case of relative E distances we always reset to 0 before any output
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if (this->config->use_relative_e_distances)
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this->E = 0;
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this->E += dE;
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this->absolute_E += dE;
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return dE;
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}
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/* This method makes sure the extruder is retracted by the specified amount
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of filament and returns the amount of filament retracted.
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If the extruder is already retracted by the same or a greater amount,
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this method is a no-op.
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The restart_extra argument sets the extra length to be used for
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unretraction. If we're actually performing a retraction, any restart_extra
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value supplied will overwrite the previous one if any. */
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double
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Extruder::retract(double length, double restart_extra)
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{
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// in case of relative E distances we always reset to 0 before any output
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if (this->config->use_relative_e_distances)
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this->E = 0;
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double to_retract = length - this->retracted;
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if (to_retract > 0) {
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this->E -= to_retract;
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this->absolute_E -= to_retract;
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this->retracted += to_retract;
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this->restart_extra = restart_extra;
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return to_retract;
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} else {
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return 0;
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}
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}
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double
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Extruder::unretract()
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{
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double dE = this->retracted + this->restart_extra;
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this->extrude(dE);
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this->retracted = 0;
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this->restart_extra = 0;
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return dE;
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}
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double
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Extruder::e_per_mm(double mm3_per_mm) const
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{
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return mm3_per_mm * this->e_per_mm3;
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}
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double
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Extruder::extruded_volume() const
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{
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return this->used_filament() * (this->filament_diameter() * this->filament_diameter()) * PI/4;
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}
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double
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Extruder::used_filament() const
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{
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// Any current amount of retraction should not affect used filament, since
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// it represents empty volume in the nozzle. We add it back to E.
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return this->absolute_E + this->retracted;
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}
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double
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Extruder::filament_diameter() const
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{
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return this->config->filament_diameter.get_at(this->id);
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}
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double
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Extruder::extrusion_multiplier() const
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{
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return this->config->extrusion_multiplier.get_at(this->id);
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}
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double
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Extruder::retract_length() const
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{
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return this->config->retract_length.get_at(this->id);
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}
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double
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Extruder::retract_lift() const
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{
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return this->config->retract_lift.get_at(this->id);
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}
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int
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Extruder::retract_speed() const
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{
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return this->config->retract_speed.get_at(this->id);
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}
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double
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Extruder::retract_restart_extra() const
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{
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return this->config->retract_restart_extra.get_at(this->id);
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}
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double
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Extruder::retract_length_toolchange() const
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{
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return this->config->retract_length_toolchange.get_at(this->id);
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}
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double
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Extruder::retract_restart_extra_toolchange() const
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{
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return this->config->retract_restart_extra_toolchange.get_at(this->id);
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}
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#ifdef SLIC3RXS
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REGISTER_CLASS(Extruder, "Extruder");
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#endif
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}
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